Let A be the area of the region ( x , y ) : y ≥ x 2 ,   y ≥ ( 1 - x ) 2 ,   y ≤…

Let A be the area of the region (x,y):yx2, y(1-x)2, y2x(1-x). Then 540A is equal to

Solution

Given,

A be the area of the region

(x,y):yx2,y(1-x)2,y2x(1-x)

Now solving y=x2 & y=2x1-x we get, x=0, 23

And solving y=1-x2 & y=2x1-x we get, 

1+x2-2x=2x-2x2

3x2-4x+1=0

x=1, 13

Now on plotting the diagram of the above region we get,

Now from the above diagram area of the shaded region will be,

A=13232x-2x2dx-13121-x2dx+1223x2dx

A=x2-2x331323-x-1331312+x331223

A=5108

A=5108540 A=5108×540=25

Asked in: JEE Main 2023 (30 Jan Shift 2)

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